InvestorPresentation

3Q 2020

2

Safe Harbor StatementCertain statements in this presentation and the accompanying oral presentation, if any, relate to future results that are forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995. This presentation contains statements involving risks and uncertainties, including, but not limited to, statements relating to Limelight Networks’ market opportunity, solutions, services, and feature functionalities, revenues, gross profit, earnings, adjusted EBITDA, capital expenditures, free cash flow, the anticipated impact on our business and our customers' businesses of the COVID-19 pandemic and future business prospects. Actual results may differ materially, and reported results should not be considered as an indication of future performance. Factors that could cause actual results to differ are included in Limelight Networks’ Annual Report on Form 10-K for the year ended December 31, 2019 and periodic reports on Form 10-Q for the quarters ended March 31, 2020 and June 30, 2020.

In addition, the statements in this presentation represent Limelight Networks' expectations as of today. We anticipate that subsequent events and developments may cause these expectations and beliefs to change. However, while we may elect to update these forward-looking statements at some point in the future, we specifically disclaim any obligation to do so. These forward-looking statements should not be relied upon as representing our expectations or beliefs as of any date subsequent to the date of this presentation.

In addition to Limelight Networks’ GAAP financial information, this presentation includes certain non-GAAP financial measures. The non-GAAP measures have limitations as analytical tools and you should not consider them in isolation or as a substitute for the most directly comparable financial measures prepared in accordance with GAAP. There are a number of limitations related to the use of these non-GAAP financial measures versus their nearest GAAP equivalents. Other companies, including companies in our industry, may calculate non-GAAP financial measures differently or may use other measures to evaluate their performance, all of which could reduce the usefulness of our non-GAAP financial measures as tools for comparison. We urge you to review the reconciliation of our non-GAAP financial measures to the most directly comparable GAAP financial measures set forth in Limelight Networks’ most recent Annual Report on Form 10-K on file with the Securities and Exchange Commission (the “SEC”) and our other filings with the SEC, and not to rely on any single financial measure to evaluate our business.

This presentation also contains estimates and other statistical data made by independent parties and by Limelight Networks relating to market size and growth and other industry data. These data involve a number of assumptions and limitations, and you are cautioned not to give undue weight to such estimates. Limelight Networks has not independently verified the statistical and other industry data generated by independent parties and contained in this presentation and, accordingly, it cannot guarantee their accuracy or completeness. In addition, projections, assumptions and estimates of its future performance and the future performance of the markets in which it competes are necessarily subject to a high degree of uncertainty and risk due to a variety of factors. These and other factors could cause results or outcomes to differ materially from those expressed in the estimates made by the independent parties and by Limelight Networks.

3

Limelight Management Team

316years ofcollectiveexperience

Robert LentoChief Executive Officer

37 years of exp.

Sajid MalhotraChief Strategy Officer

35 years of exp.

Dan BoncelChief Financial Officer

23 years of exp.

Michael DiSantoChief Administrative & Legal

Officer & Secretary22 years of exp.

Dan CarneySenior VP, Operations

29 years of exp.

Thomas MarthSenior VP, Sales 35 years of exp.

Christine CrossSenior VP, CMO26 years of exp.

Mike PalackdharrySenior VP, Strategic Solutions

35 years of exp.

Kurt SilvermanSenior VP, Development &

Delivery 39 years of exp.

Sandra BrisentineVP, Human Resources

35 years of exp.

4

From Millions in Seconds to Billions in Milliseconds

Population Reached

9M90M 900M

9000M

9000ms

90ms 9ms900ms

Latency

*Illustrative Purposes Only

High Expectations for Quality Viewing Experiences

5

Connecting Content to Consumers

CDN(Content Delivery Network)

A geographically distributed network of connected servers purpose built, to distribute content to end users

6

>95% cache hit efficiency worldwide

Revenue of over $100K per customer, per

quarter

Over 1 billion objects purged in less

than one second

Backbone 8x the Earth’s

circumference

Limelight By the Numbers1

1As of June 30, 2020

7

Limelight's Global Footprint: Coverage Growing with Demand

70+ TbpsEgress Capacity

~120Delivery Locations

1000+ ISPsNetwork Connections PoP

Multiple PoPs

Planned PoP

Population Density

8

Connectivity, storage, bandwidth, computing resources worldwide

Densely configured, high capacity servers

Global private network with local presence

Managed by proprietary intelligent software

Foundationof Our Network

The

Strategically Located Points of Presence

+

+

+

+

9

PLATFORM OFTHE FUTURE

Global Services combine private infrastructure, intelligent software, and expert support

10

Why We Win

We had a great Limelight team before, during and after the implementation. It went so smoothly that we experienced not even a ripple; my boss didn’t even know when we

moved over.

Working with Limelight, we’re able to create and deliver a broadcast quality experience low on buffering, low on start-up times, and high on picture quality. Limelight is a key supplier in our strategy and a partner in our success.

To improve our go-to learning app, we conducted extensive testing with multiple CDNs and chose Limelight because it had the lowest buffer rate by far.

11

Activated Pandemic Response Plan

Adapted to Supply Chain and Operational Restrictions

Reached Out to Help ISPs Manage Traffic

24x7 Support to Customers Worldwide

Financial Growth and Increased Guidance

+

COVID-19 Response/Developments

+

+

+

+

$230-$240

$220-$235

CurrentInitial

$ Millions

12

Well positioned for future growth

Edge network built to reduce latency and

deliver video

Customer-first business model

Profitable financial profile

Proven management team

HighlightsInvestment

13

Use Cases: Present to Future

TODAY TOMORROW

14

0.9

1.7

5.8

Millions of Petabytes 0.7

1.3

4.6

Video Traffic Rest of Traffic

Global Video TrafficExpected To

By 2024

Source: Omdia

74% 76% 80%Video Streaming as a % of Total

2017 2019 2024

15

Edge Accelerating Revenue

Base Edge

2019 2020 Future

$168

$201

3.7

$235*

$ Millions

2016

* Guidance mid-point

16

2019 2024 2019 2024 2019 2024

Global CDN Revenue by Region

Source: IDC

$1.7B

$6.9B

North America EMEA APAC

$3.2B

$1.3B

$5.9B

$3.7B

17

PLATFORM OFTHE FUTURE

Global Services meet current and future customer needs

18

We Connect People to the World Around Them

19

Customer Net Promoter Score

+84 ptImprovement in NPSSince 2013

-56%Drop in Support Tickets

3XIncrease in Traffic

Average

NPS

4532 57

NPSBenchmarks

47

Source: Survey Monkey Global Benchmark Data, Customer Guru

2014 2015 2016 2017 2018 2019

Support Tickets Net Promoter Score

+84

-56%

Traffic Delivered

20

Delivering Low-Latency Video, Exploring Edge Opportunities

Land

Adopt

Expand

Dedicated focus to video delivery landed first contract

Worked side-by-side throughout process ensuring smooth execution and world-class quality

Awarded incremental traffic through best-in-class quality

We are now their CDN provider of choice

2-Year Revenue CAGRfrom a Top Customer

21

Establishes a higher run rate

+37%

Q4 2018 Q4 2019 Q1 2019 Q1 2020 Q2 2019 Q2 2020

$44.0

$60.1

$43.3

$57.0

$45.9

$58.5

+32% +28%

$ Millions

22

In Year-over-year Adjusted EBITDA Margin1 Expansion

(1.4)%

3.1%

16.6%

10.4%

19.0%

Q4 2018 Q4 2019 Q1 2019 Q1 2020 Q2 2019 Q2 2020

9.8%

1 Adjusted EBITDA margin calculated as Adjusted EBITDA divided by total revenue. Adjusted EBITDA defined as U.S. GAAP net (loss) income add depreciation and amortization add interest experience add interest and other (income) expense add share-based compensation. See slide 29 for non-GAAP reconciliation.

23

The Immediate Opportunity is

2019 2024

$6.3B

$9.2B

$20.1B

CDN Edge Cloud Source: IDC, Cisco

$15.1B

24

In Footprint Growth and Capabilities

$0.00

$10.00

$20.00

$30.00

$40.00

$50.00

$60.00

$70.00

$80.00

$46.1

$20.7$16.1

$34.7$40.2

$57.2

$25.3 $24.1 $22.5

Research & Development ($ Millions) Capital Expenditures ($ Millions)

2017 2018 2019

25

Revenue Growth

Adj. EBITDA Margin1

Capex as % of Revenue

Free Cash Flow Margin2

17.1%

13.4%

11.7%

1.7%

15%

>25%

10%

>15%

Long Term Target2020 Guidance2019

9.0%

17.3%

-8.3%

2.5%

Strategy for

1 Adjusted EBITDA margin calculated as Adjusted EBITDA divided by total revenue. Adjusted EBITDA defined as U.S. GAAP net (loss) income add depreciation and amortization add interest experience add interest and other (income) expense add share-based compensation; refer to slide 28 for reconciliation.2 Free Cash Flow defined as Adjusted EBITDA less Capex.

Thank You

linkedin.com/company/limelight-networks

twitter.com/llnw

facebook.com/LimelightNetworks

info@llnw.comir@llnw.com

27

Reconciliation of Non-GAAP Figures

Year Ended 31-Dec

$ Millions 2017 2018 2019

U.S. GAAP Net (Loss) Income $(7,630) $9,842 $(16,044)

Depreciation and Amortization 20,514 18,590 20,065

Interest Expense 80 86 76

Interest and Other (Income) Expense (946) (406) (507)

Income Tax Expense 426 538 750

EBITDA $12,444 $28,650 $4,340

Settlement and Patent License Income – (14,900) –

Share-Based Compensation 12,744 15,830 13,778

Litigation Expenses 5,518 2,907 –

Adjusted EBITDA $30,706 $32,487 $18,118

28

Reconciliation of Non-GAAP Figures (Cont’d)

$ Millions Q3 2018 Q4 2018 Q1 2019 Q2 2019 Q3 2019 Q4 2019 Q1 2020 Q2 2020

U.S. GAAP Net (Loss) Income $(272) $(5,193) $(8,559) $(7,192) $(2,751) $2,458 $(5,257) $(1,727)

Depreciation and Amortization 4,377 4,417 4,562 4,755 5,133 5,616 5,491 5,683

Interest Expense 10 10 10 10 10 45 10 71

Interest and Other (Income) Expense 69 (320) (206) (40) (68) (194) 85 306

Income Tax Expense 113 190 124 255 166 206 176 136

EBITDA $4,297 $(896) $(4,069) $(2,212) $2,490 $8,131 $505 $4,469

Settlement and Patent License Income – - - - - - - -

Share-Based Compensation 3,421 5,485 3,456 3,649 3,358 3,315 5,064 5,251

Litigation Expenses 19 3 - - - - - -

Adjusted EBITDA $7,737 $4,592 $(613) $1,437 $5,848 $11,446 $5,569 $9,720

SEPTEMBER 24, 2019

ANALYST DAY

30

AGENDA

Welcome Sajid Malhotra, CFO

Limelight Opportunity Bob Lento, CEO

Break

Accelerating Edge Mike Palackdharry, SVP Strategic Initiatives

Sales Update Tom Marth, SVP Sales

Financials Sajid Malhotra, CFO

Q&A

Lunch

31

SAFE HARBOR STATEMENT

Certain statements in this presentation and webcast relate to future results that are forward-looking

statements as defined in the Private Securities Litigation Reform Act of 1995. This presentation and

webcast contain statements involving risks and uncertainties, including statements relating to

Limelight Networks’ market opportunity, solutions, services, and feature functionalities, revenues,

gross profit, earnings, adjusted EBITDA, capital expenditures, free cash flow, and future business

prospects. Actual results may differ materially and reported results should not be considered as an

indication of future performance. Factors that could cause actual results to differ are included in the

Limelight Networks’ Annual Report on Form 10K and our periodic reports on Form 10Q.

In addition, the statements in this presentation and webcast represent Limelight Networks'

expectations as of today. We anticipate that subsequent events and developments may cause these

expectations and beliefs to change. However, while we may elect to update these forward-looking

statements at some point in the future, we specifically disclaim any obligation to do so. These

forward-looking statements should not be relied upon as representing our expectations or beliefs as

of any date subsequent to the date of this presentation and webcast.

.

Bob Lento | CEO

LIMELIGHT OPPORTUNITY

33

1972

HBO founded as 1st

US pay-TV network;

cable de-regulation

starts

2008

Hulu

launches

2006

Amazon

launches

streaming

2011

Amazon

packages

streaming with

Prime

VIDEO HAS BEEN THROUGH 3 MAJOR PHASES

Broadcast Cable & Pay-TV Over the Top (OTT)

1930

<1% of U.S. homes

own a television set

1939

NBC and CBS begin

regular service

1948

U.S. cable television is

introduced

1954

TV broadcast

revenue surpasses

radio

1979

Cable TV networks

emerge (C-SPAN,

ESPN)

1988

98% of U.S.

homes own a

television set

2007

Netflix begins

streaming

content

1994

DirecTV and

Dish Network

are launched

2017

YouTube TV

begins streaming

in certain

markets

Disruptors

1960s

Regulations constrain

cable growth

2016

Prime Video

available in all

but 4 countries

2012

Cable/Pay-TV

subscribers

starts to

decline

34

OTT PHASE: RAPID AND BROAD ADOPTION

0%

20%

40%

60%

80%

100%

0 10 20 30 40 50 60

Penetration

Years since launch

OTT

Cable12 years to reach 69%of US consumers

(still growing)

60 years to reach

87% of US

households

(now declining)

Source: Fortune, Multichannel

35

OTT PHASE: PROLIFERATION OF OFFERINGS

Source: KPMG, Parks Associates

0

50

100

150

200

250

2010 2012 2014 2016 2018

Cumulative Number of OTT Platforms Launched

36

OTT PHASE: RAPIDLY GOING GLOBAL

Source: Broadband TV News

North America EMEA APAC

$24.4B

$18.1B $18.4B

$9.2B

$18.4B

$7.9B

GLOBAL OTT TV AND VIDEO REVENUE BY REGION

2016 2021 2016 2021 2016 2021

37

OTT PHASE: INCREASINGLY LIVE

LIVE INTERNET VIDEO TRAFFIC EXPECTED TO GROW 15-FOLD BETWEEN 2017 AND 2022

Source: Cisco

73%CAGR

2018 2020 2022

38

OTT PHASE: INCREASINGLY INTERACTIVE

12-FOLDINCREASE IN VR/AR

TRAFFIC BY 2022

Source: Cisco, Sports Betting Dime

9-FOLDINCREASE IN INTERNET

GAMING TRAFFIC BY 2022

$60B+SIZE OF GLOBAL

SPORTS BETTING

MARKET

39

POPULATION REACHED

LATENCY

IMPLICATION: NEED TO REACH MORE, FASTER

9M 90M900M

9000M

9000ms

90ms 9ms900ms

40

WHAT’S NEEDED: A TRUE EDGE PLATFORM

Locations close to every user

Compute, networking, storage

NETWORK

• External: last mile connectivity

• Internal: private backbone interconnection

Content distribution

Service orchestration

APIs for user control

PERVASIVE

• Security

• Management and optimization

• Service and support•

•

•

•

•

SERVICES

EDGE ASSETS

41

WHAT’S POSSIBLE

GAMING AND GAMBLING

We brought the theater into our homes.

How about a courtside seat in your

home, interacting in real-time –

watching multiple camera angles,

interacting with friends, switching

between games, betting on every play

and getting instantaneous settlements.

41

42

WHAT’S POSSIBLE

MEDICALCARE

Transforming healthcare through

interactive 3D visualizations for surgical

planning, VR-enabled therapy and

rehab, visualize patient health

information in AR, connecting care

providers with remote patients, IoT

enabled hospital beds and real-time

data from wearables to monitor patient

health and well-being.

43

WHAT’S POSSIBLE

CONNECTED & AUTONOMOUS VEHICLES

Self driving cars make accidents and

traffic jams a things of the past and

extend to other vehicles like drone

delivery. Autonomous vehicles will

revolutionize public transport, car

rentals, auto insurance, shipping and

commercial fleets and many others.

44

WHAT’S POSSIBLE

AGRI-TECH

Make farming easier, more sustainable,

and more profitable using drone terrain

mapping, autonomous tractors, real-

time data collection and analysis.

45

WHAT’S POSSIBLE

MILITARY & DEFENSE

VR-enabled immersive training, IoT

enabled connected battlefields and

smart bases, smart lens delivering low

latency video from a robotic soldier to

central command, 5000 miles away.

45

46

WHAT’S POSSIBLE

VIRTUAL TOURISM

Visit any place, real or imaginary,

Bhutan or Middle Earth, ride a Bugatti or

TRex, in future or past with connected

VR and AR technology.

47

THE IMMEDIATE OPPORTUNITY IS SIGNIFICANT

$16.6B

2018 2022

$7.7B

Edge Cloud

CDN

Source: IDC

>2x

48

OUR MISSION

We are passionate about connecting people to the world around them.

We remove the barriers that stand between our customers’ end users

and their entertainment, their news, their community, their educational resources.

Our platform supports the highest quality user experience today and

accelerates the next generation of real-time, interactive and immersive content.

We position our customers’ content and applications right next to their end users

at the network edge for the most dynamic, real-time interactions no matter

where the end users live, work or play.

We sweat the details, so our customers don’t have to.

49

WE ENABLE THE LEADING OTT PROVIDERS

From the early days… …to now

50

WE HAVE THE PLATFORM OF THE FUTURE

100+ PoPs around the globe

Compute in multiple locations

Storage in regional and global

architectures

NETWORK

• Interconnected with >1,000 last mile

networks

• Private network connecting global

locations

The premier video CDN

Function-as-a-service

APIs for user control

PERVASIVE

• Content and infrastructure security

services

• Management and optimization

• Industry leading service and support•

•

•

SERVICES

EDGE ASSETS

•

•

•

51

COMPETITORS ARE NOT OPTIMIZED FOR VIDEO

CDNs Cloud Providers

Most focused on web

performance and security

Most not focused on video

service innovation

Fewer, larger locations

Focus on app development and

centralized compute platform

52

WE ARE FOCUSED TO WIN

EXPAND

CONTROL

fully API-configurable

ENHANCE

MANAGEMENT

via machine learning

and AI

ENABLE

INNOVATION

live streaming,

edge orchestration

EXTEND

CAPACITY

right places,

most peers

SUMMARY

Huge growth opportunity

Aligned with Limelight platform

Marquee customer base

Differentiated from competition

Focused to win$

Mike Palackdharry | SVP Strategic Initiatives

ACCELERATING EDGE

55

MIKE PALACKDHARRY

• Previously CEO of Aquiire, Inc.,

acquired by Coupa Software

• 20+ years of executive leadership

positions; emphasis on real-time

applications and disruptive B2B

technologies

• SVP Strategic Solutions since

01/01/2019

56

OUR VISION FOR EDGE

Enrich people’s lives by making information,

knowledge and entertainment instantly

accessible to all

The Limelight real-time distributed edge

platform

57

THE FOUNDATIONS OF THE LIMELIGHT EDGE

Locations close to every user

Compute, networking, storage

NETWORK

• External: last mile connectivity

• Internal: private backbone interconnection

Content distribution

Service orchestration

APIs for user control

PERVASIVE

• Security

• Management and optimization

• Service and support•

•

•

•

•

SERVICES

EDGE ASSETS

58

LIMELIGHT SPRINT TO THE EDGE

Phase 1Limelight Baseline Functionality• RTS and other IP developed

• Build out locations and capacity

• Launched Neustar as edge customer and partner

• Signed Edge Gravity partnership for accelerated

network advancement

Phase 2Distributed Edge Cloud Buildout• EG / LLNW execution

• Build compute infrastructure

• Implement large global gaming customer

• Implement live sports customer on global edge compute

Phase 3Limelight Edge Service Applications

and Management • Complete compute roll-out

• Continue EG execution

• Introduce serverless compute (FaaS)

• Advance Real-Time Application Suite and IP Portfolio

2018

2019

2020-2021

Network

Services

Edge Co-

location

Edge

Compute

Advanced

Edge

Services

Real-Time

Apps

Network

Services

Edge Co-

location

Edge

Compute

Advanced

Edge

Services

Real-Time

Apps

Network

Services

Edge Co-

location

Edge

Compute

Advanced

Edge

Services

Real-Time

Apps

Customer Responsibilities

59

FUTURE WITH THE LIMELIGHT EDGE

Limelight Real-Time Distributed

Edge Platform Use Cases

Gaming

Gambling

Entertainment

IOT

Medical

Autonomous Vehicles

Video Security

Legacy IT Applications

+Many more

SERVICES

Process• Analyze

• Rate & bill

• Notify

• Communicate

Secure• Protect

• Predict

• Isolate

Deliver• Intelligent Distribution

60

POTENTIAL OF AN ORCHESTRATED PLATFORM

ORCHESTRATED SERVICES PROVIDE FLEXIBILITY AND HIGH UTILITY

Edge Services are applicable to many verticals.

Orchestrated services drive customers to a desired outcome as they capture, hold and add value to data

processed at the edge.

Application of Process, Secure and Deliver dimensions varies.

PROCESS

SECUREDELIVER

VIDEO ADVERTISING

PROCESS

SECUREDELIVER

AUTONOMOUS VEHICLES

PROCESS

SECUREDELIVER

GAMING

61

BUILDING AN EDGE SERVICES SET

GROWING PARTNER ECOSYSTEM FOR ACCELERATION AND DIFFERENTIATION

LIMELIGHTNETWORKS

HIGH VELOCITY

NEUSTAR

EDGE GRAVITYAPPLICATIONS

OTHERPartners provide expansion,

infrastructure and co-developed

applications for Edge Services

62

LIMELIGHT + ERICSSON EDGE GRAVITY

Expands capacity and Edge

- Within service providers and closer to the edge

- Access locations that were previously hard to reach

Limelight reduced CapEx model

Faster performance with caching in the

last mile

Private CDN for operators

Service provider revenue share

63

10+Tbps DDoS mitigation capability

Collaborating towards a real-time

security application suite

LIMELIGHT + NEUSTAR

64

Significant advancement in partner ecosystem and technology IP

Examples of current edge use cases

Real-time simultaneous

viewing and control of

underwater drones for

research

Live quiz show deployed at

edge for simultaneous player

performance and capabilities

along with improved

performance on next

generation of streaming

Enhanced live sports

viewing experience with

synchronized data

distribution and cross-

device playback

Global console-less game

streaming, live content and

VOD platform at the edge

EXISTING EDGE SERVICES USE CASES

65

THE FUTURE WITH THE LIMELIGHT EDGE

PAST PRESENT FUTURE

• Infrastructure and partner

eco-system

• Large targeted

implementations

• IP and patent portfolio

• Expand Real-Time Edge

Platform and Services

• Deploy orchestration and API

led services

• Accelerate penetration of

existing customer base

• Delivering unprecedented and

patented platform capabilities

for real-time events

• Replacing applications with

edge applications

• Leading the world in distributed

edge services

Tom Marth | SVP Sales

SALES UPDATE

67

TOM MARTH

Led teams for 13 years

Enterprise Tech & ERP

Primavera in Americas

6 years at Workday

Pre-IPO

Growth: $134M to $2.5B

Market Cap: $650M to $24B

SVP Sales since 1/1/2019

Culture; timing is exciting

Make an impact and drive

consistent growth

68

We are helping to change the

SENSE OF URGENCY AND PASSION!

Customer Focus

• Prepare

• Plan your work

• Work your plan

• Discipline

Customer Focus

• Transparency with

leadership

• Communicate

• Team selling

Customer Focus

• Question

• Listen Learn

• Be a student

• Best practices

LEADERSHIP PHILOSOPHY

ACCOUNTABILITY COLLABORATION CONTINUOUS LEARNING

69

NEAR-TERM PRIORITIES

ADD

HEADCOUNT

REDUCE

CHURN

ACQUIRE DESIRABLE

LOGOS

70

DESIRED OUTCOME

IMPROVE

PIPELINE

STRENGTHEN

CORE

INCREASE

SHARE OF

WALLET

ACCELERATE

MOMENTUM

ON EDGE

Sajid Malhotra| CFO

FINANCIALS

72

FINANCIAL SUMMARY

MULTIPLE

EXPANSION

POTENTIAL

POSITIONED TO

LEAD

IMPROVING

PERFORMANCE

ATTRACTIVE

FINANCIAL

MODEL

$

73

PERFORMANCE HAS BEEN IMPROVING

$41.4 $44.7 $52.1

$43.6 $45.4$50.2

$39.5 $46.1

$49.3

$43.8

$48.2

$44.0

2016 2017 2018

Q1 Q2 Q3 Q4

$4.0$6.7

$11.0$6.2

$7.9

$9.2

$5.1

$7.4

$7.7

$7.5

$8.7

$4.6

2016 2017 2018

Q1 Q2 Q3 Q4

$16.6$21.2

$26.7

$18.8

$21.4

$24.8$16.2

$22.3

$24.0 $19.7

$23.0

$17.9

2016 2017 2018

Q1 Q2 Q3 Q4

42.4%

47.6% 47.8%

ADJUSTED EBITDAGROSS PROFIT/MARGINREVENUE PROGRESSION

$168.2

$184.4$195.7

$ Millions $ Millions $ Millions

$71.3

$87.8$93.5

$22.8

$30.7$32.5

74

OPERATIONAL PERFORMANCE

YoY increase in average

server capacity

Point increase in Net

Promoter Score since 2013

YoY increase in number

of POPs worldwide

YoY increase in total

capacity

>90% >120%

83+ 50%

75

LEADING CUSTOMER SATISFACTION

Net

Promoter

Score

2013

Support

Tickets

2014 2015 2016 2017 2018

+83

-64%

LLNW matches up favorably against other tech brands:

LLNW exceeds top range for streaming media industry:

LLNW NPS vs. Support TicketsNPS Benchmarks

24 4939

Low NPS High NPSAvg.

Source: Temkin Group, Customer Guru

45 45

57

29

57

-7

76

KEY HEADLINES

Limelight Named a

Leader in IDC

MarketScape Report on

Worldwide Content

Delivery Networks

Limelight Opens 100th

Point-of-Presence and

Increases Global

Capacity 40 Percent

Limelight Expands

Developer Toolkit With

New API and Portal

Enhancements

Limelight and

Ericsson to

Accelerate Content

Delivery and Edge

Cloud Adoption

Limelight Wins IABM

BaM™ Award for

Breakthrough Realtime

Streaming Service

Limelight Sets Record for

a Single Purge of 1.1

Billion Objects Globally in

Under a Second

“

” ” ”

”

“ “

“

”

““

”

77

2019 PERFORMANCE – TALE OF TWO HALVES

Revenue

$ millions, except per share data

GAAP EPS

Non-GAAP EPS

Adjusted EBITDA

Capital Expenditure

$89 $109 22% 17%

-$0.14

-$0.08

$0.8

$16

$0.01

$0.06

$18

$10

107%

175%

2,150%

-38%

120%

100%

46%

-2%

Analyst

Expectations

1H 2019 2H 2019

Actual 2H2019 Growth

Sequential YoY

78

ANALYST VIEWS

“

””

“Reported Mixed 2Q, Cuts Annual Guide as Growth

Initiatives are Pushed Out; Lowering Estimates, PT from

$4.90 to $2.90; Maintain Buy – B. Riley

Another Soft Quarter; Are Numbers Low Enough? – D.A.

Davidson & Co.

Soft 2Q Results, 2019 Guide Lowered; Reiterate Market

Perform – Raymond James

DISAPPOINTING 1Q19 RESULTS; MAINTAINED 2019

GUIDANCE – Cowen

LLNW 1Q19: Weak Quarter, Management Highly Confident

in Strategy Though – Oppenheimer

Weak Quarter Likely To Throw Many Off The Scent.

Valuation Implies Death, Yet Sequential Results Over Next

Several Quarters Likely To Be Among, If Not The Best, In

Company History. Maintaining BUY Rating – Craig-Hallum

Reports Solid 1Q Beat, Quality Over Quantity Strategy

Paying Off; Increasing Estimates, PT; Reiterate Buy – B.

Riley

SOLID 1Q18 RESULTS; HITTING ON ALL CYLINDERS –

Cowen

LLNW 1Q18 Earnings: Turnaround Momentum Evidenced

by Historic Quarter, Raising PT to $6.50 – Oppenheimer

Delivering Content for Customers, Results for Investors –

D.A. Davidson & Co.

Fourth consecutive quarter of double digit growth – JMP

Securities

As Limelight's quality of service has improved, we believe

they have become increasingly competitive in this segment

of the market, driving a mix shift to higher priced traffic that

benefitted average company pricing (ASPs) this quarter –

Raymond James

1H2019 1H2018

79

PATH TO LONG TERM TARGETS

Revenue Growth

Gross Margin

Non GAAP Income

Margin

Adj. EBITDA Margin

Capex as % of

Revenue

Free Cash Flow Margin

6.1%

47.8%

7.0%

16.6%

8.2%

8.4%

15%

55%

>10%

>25%

10%

>15%

LONG TERM TARGET2018

5.2%

38.0%

-12.2%

5.5%

10.2%

-3.3%

2012

80

LONG TERM TARGETS: REVENUE GROWTH

Revenue Growth

Gross Margin

Non GAAP Income

Margin

Adj. EBITDA Margin

Capex as % of

Revenue

Free Cash Flow Margin

6.1%

47.8%

7.0%

16.6%

8.2%

8.4%

15%

55%

>10%

>25%

10%

>15%

LONG TERM TARGET2018

5.2%

38.0%

-12.2%

5.5%

10.2%

-3.3%

2012

KEY DRIVERS:

• Base business at 8-9% growth

• New initiatives driving remaining growth

81

LONG TERM TARGETS: GROSS MARGIN

Revenue Growth

Gross Margin

Non GAAP Income

Margin

Adj. EBITDA Margin

Capex as % of

Revenue

Free Cash Flow Margin

6.1%

47.8%

7.0%

16.6%

8.2%

8.4%

15%

55%

>10%

>25%

10%

>15%

LONG TERM TARGET2018

5.2%

38.0%

-12.2%

5.5%

10.2%

-3.3%

2012

KEY DRIVERS:

• Better mix of business

• Increased utilization with scale

• Improving cost profile & efficiency

82

LONG TERM TARGETS: NON GAAP INCOME AND

ADJUSTED EBITDA MARGINS

Revenue Growth

Gross Margin

Non GAAP Income

Margin

Adj. EBITDA Margin

Capex as % of

Revenue

Free Cash Flow Margin

6.1%

47.8%

7.0%

16.6%

8.2%

8.4%

15%

55%

>10%

>25%

10%

>15%

LONG TERM TARGET2018

5.2%

38.0%

-12.2%

5.5%

10.2%

-3.3%

2012

KEY DRIVERS:

• Strong revenue growth

• Disciplined increase in COGS expense

• Effective management of operating expenses

83

LONG TERM TARGETS: CAPEX AND FCF MARGIN

Revenue Growth

Gross Margin

Non GAAP Income

Margin

Adj. EBITDA Margin

Capex as % of

Revenue

Free Cash Flow Margin

6.1%

47.8%

7.0%

16.6%

8.2%

8.4%

15%

55%

>10%

>25%

10%

>15%

LONG TERM TARGET2018

5.2%

38.0%

-12.2%

5.5%

10.2%

-3.3%

2012

KEY DRIVERS:

• R&D efficiency reducing Capex dependence

• Strong revenue growth

• Leverage in business model

84

GLOBAL REVENUE MIX, LOW CURRENCY EXPOSURE

Americas61% of revenue

EMEA16% of revenue

(8% non-USD currency)

APAC23% of revenue

(8% non-USD currency)

Note: Based on 1H2019 revenue

85

STRONG BASE OF ENTERPRISE CUSTOMERS

LLNW

92%86%

LLNW LLNW

24%

16%

ENTERPRISE

CUSTOMERS AS

% OF TOTAL

ENTERPRISE CUSTOMERS

REVENUE AS % OF TOTAL

QUARTERLY AVG. REVENUE PER

CUSTOMER

Competitor

A

Competitor

A

Competitor

A

$28k

$73k

Note: Enterprise customers are defined as customers with revenue in excess of $100,000 over the previous 12-month period. Excludes customers that termed within the reporting quarter.

Sourced from 2Q2019 disclosures.

86

TARGETS COMPARE FAVORABLY WITH PEERS

2019E 2021E 2019E 2021E 2019E 2021E

Revenue $198 $241 $193 $322 $2,860 $3,241

YoY Growth 1% 9% 33% 29% 5% 6%

Gross Profit $86 $139 $109 $204 $1,890 $2,141

Margin Improvement 2019 vs 2021 +1,500 bps +600 bps +0 bps

Implied Opex $87 $119 $148 $228 $1,071 $1,160

Opex Increase 2019 vs 2021 +$32 +$80 +$89

Adj. EBITDA(1) $18 $45 ($23) ($3) $1,185 $1,409

2019-21 Cumulative Adj EBITDA $93 ($51) $3,891

FCF ($14) $17 ($55) ($49) $483 $800

2019-21 Cumulative FCF $10 ($169) $1,985

Source: Financials based on Wall Street research estimates as of September 18, 2019.

Note: Dollars in millions.

(1) Limelight adjusted EBITDA adjusted for stock-based compensation. Competitor A adjusted EBITDA includes adjustments for stock-based compensation and other income/loss. Competitor B adjusted EBITDA

include adjustments for stock-based compensation, one time charges and legal / stockholder matter costs.

COMPETITOR A COMPETITOR B

87

0.0x

2.0x

4.0x

6.0x

8.0x

10.0x

12.0x

14.0x

0% 10% 20% 30% 40% 50% 60%

MULTIPLE BELOW PEER GROUPS

Revenue Multiple vs. Growth

Source: Factset as of September 18, 2019. Financials based on Wall Street research consensus estimates.

(1) Core Peers include Akamai, Brightcove, Fastly.

(2) Proxy Peers include Carbonite, Boingo, Care.com, Channeladvisor, Digi, Five9, Glu Mobile, Internap, LivePerson, Mobileiron, Model N, QAD, QuinStreet and Tucows.

Revenue Multiple vs. Growth + Margin

0.0x

2.0x

4.0x

6.0x

8.0x

10.0x

12.0x

14.0x

0% 10% 20% 30% 40% 50% 60%

Core Peers(1)

Proxy Peers(2)

LLNW

88

ACCELERATING REVENUE GROWTH

1Q2019 2Q2019 3Q2019 (1) 4Q2019 (1)

Revenue:

LLNW $43.28 $45.90 $49.89 $58.79

Competitor A $45.56 $46.17 $48.1 $53.17

Competitor B $706.51 $705.07 $701.25 $746.96

Sequential Revenue Growth:

LLNW -2% 6% 9% 18%

Competitor A 12% 1% 4% 11%

Competitor B -1% 0% -1% 7%

YoY Revenue Growth:

LLNW -17% -9% 1% 34%

Competitor A 40% 34% 31% 30%

Competitor B 6% 6% 5% 5%

Note: Dollars in millions

(1) Represents analyst consensus amounts

89

FINANCIAL SUMMARY

MULTIPLE

EXPANSION

POTENTIAL

POSITIONED TO

LEAD

IMPROVING

PERFORMANCE

ATTRACTIVE

FINANCIAL

MODEL

$

LIMELIGHT OFFERS

A UNIQUE OPPORTUNITY

IN AN ATTRACTIVE INDUSTRY

Q & A

91

linkedin.com/company/limelight-networks

twitter.com/llnw

facebook.com/LimelightNetworks

info@llnw.com

92

APPENDIX: NON-GAAP INCOME RECONCILIATIONLLNW COMPETITOR A COMPETITOR B

1Q2019 2Q2019 1Q2019 2Q2019 1Q2019 2Q2019

GAAP Net Income/Loss (8.56) (7.19) (9.73) (15.59) 107.13 113.92

Adjustments:

Stock-based Comp 3.46 3.65 1.47 2.24 45.31 48.14

Interest Expense - acceleration of deferred debt costs due to early

repayment - 1.79

Other Expense - mark-to-market warrant liability 0.71 1.70

Amortization of acquired Intangible Assets 9.60 9.65

Amortization of Capitalized stock-based comp and capitalized

interest exp 9.23 8.05

Restructuring Charge 6.39 0.79

Acquisition-related Costs 0.45 0.52

Transformation Costs 4.19 1.34

Amortization of debt discount and issuance costs 11.62 8.01

(Gain) Loss on Investments (0.69) 0.25

Income tax-effect of above non-GAAP adjustments and certain

discrete tax items (12.30) (14.45)

Non-GAAP Net Income/Loss (5.10) (3.54) (7.55) (9.86) 180.92 176.21